vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
78 lines
1.4 KiB
C++
78 lines
1.4 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "rasterwindow.h"
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//! [1]
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RasterWindow::RasterWindow(QWindow *parent)
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: QWindow(parent)
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, m_backingStore(new QBackingStore(this))
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{
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setGeometry(100, 100, 300, 200);
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}
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//! [1]
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//! [7]
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bool RasterWindow::event(QEvent *event)
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{
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if (event->type() == QEvent::UpdateRequest) {
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renderNow();
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return true;
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}
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return QWindow::event(event);
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}
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//! [7]
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//! [6]
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void RasterWindow::renderLater()
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{
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requestUpdate();
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}
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//! [6]
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//! [5]
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void RasterWindow::resizeEvent(QResizeEvent *resizeEvent)
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{
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m_backingStore->resize(resizeEvent->size());
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}
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//! [5]
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//! [2]
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void RasterWindow::exposeEvent(QExposeEvent *)
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{
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if (isExposed())
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renderNow();
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}
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//! [2]
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//! [3]
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void RasterWindow::renderNow()
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{
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if (!isExposed())
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return;
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QRect rect(0, 0, width(), height());
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m_backingStore->beginPaint(rect);
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QPaintDevice *device = m_backingStore->paintDevice();
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QPainter painter(device);
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painter.fillRect(0, 0, width(), height(), QGradient::NightFade);
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render(&painter);
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painter.end();
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m_backingStore->endPaint();
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m_backingStore->flush(rect);
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}
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//! [3]
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//! [4]
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void RasterWindow::render(QPainter *painter)
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{
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painter->drawText(QRectF(0, 0, width(), height()), Qt::AlignCenter, QStringLiteral("QWindow"));
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}
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//! [4]
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